# Build file for shaders.

# You must have Vulkan tools in your path, or patch here.

glslang_validator = glslangValidator
spirv_cross = spirv-cross
dxc = dxc

# See https://github.com/KhronosGroup/SPIRV-Cross/issues/1248 for
# why we set this.
msl_flags = --msl-decoration-binding

rule glsl
  command = $glslang_validator $flags -V -o $out $in

rule hlsl
  command = $spirv_cross --hlsl --shader-model 60 $in --output $out

rule dxil
  command = $dxc -T cs_6_0 $in -Fo $out

rule msl
  command = $spirv_cross --msl $in --output $out $msl_flags

build gen/binning.spv: glsl binning.comp | bins.h drawtag.h setup.h mem.h
build gen/binning.hlsl: hlsl gen/binning.spv
build gen/binning.dxil: dxil gen/binning.hlsl
build gen/binning.msl: msl gen/binning.spv

build gen/tile_alloc.spv: glsl tile_alloc.comp | drawtag.h tile.h setup.h mem.h
build gen/tile_alloc.hlsl: hlsl gen/tile_alloc.spv
build gen/tile_alloc.dxil: dxil gen/tile_alloc.hlsl
build gen/tile_alloc.msl: msl gen/tile_alloc.spv

build gen/path_coarse.spv: glsl path_coarse.comp | pathseg.h tile.h setup.h mem.h
build gen/path_coarse.hlsl: hlsl gen/path_coarse.spv
build gen/path_coarse.dxil: dxil gen/path_coarse.hlsl
build gen/path_coarse.msl: msl gen/path_coarse.spv

build gen/backdrop.spv: glsl backdrop.comp | tile.h setup.h mem.h
build gen/backdrop.hlsl: hlsl gen/backdrop.spv
build gen/backdrop.dxil: dxil gen/backdrop.hlsl
build gen/backdrop.msl: msl gen/backdrop.spv

build gen/backdrop_lg.spv: glsl backdrop.comp | tile.h setup.h mem.h
  flags = -DBACKDROP_DIST_FACTOR=4
build gen/backdrop_lg.hlsl: hlsl gen/backdrop_lg.spv
build gen/backdrop_lg.dxil: dxil gen/backdrop_lg.hlsl
build gen/backdrop_lg.msl: msl gen/backdrop_lg.spv

build gen/coarse.spv: glsl coarse.comp | drawtag.h bins.h ptcl.h blend.h setup.h mem.h
build gen/coarse.hlsl: hlsl gen/coarse.spv
build gen/coarse.dxil: dxil gen/coarse.hlsl
build gen/coarse.msl: msl gen/coarse.spv

build gen/kernel4.spv: glsl kernel4.comp | blend.h ptcl.h setup.h mem.h
build gen/kernel4.hlsl: hlsl gen/kernel4.spv
build gen/kernel4.dxil: dxil gen/kernel4.hlsl
build gen/kernel4.msl: msl gen/kernel4.spv

build gen/kernel4_gray.spv: glsl kernel4.comp | blend.h ptcl.h setup.h mem.h
  flags = -DGRAY
build gen/kernel4_gray.hlsl: hlsl gen/kernel4_gray.spv
build gen/kernel4_gray.dxil: dxil gen/kernel4_gray.hlsl
build gen/kernel4_gray.msl: msl gen/kernel4_gray.spv

# New element pipeline follows

build gen/pathtag_reduce.spv: glsl pathtag_reduce.comp | pathtag.h setup.h mem.h
build gen/pathtag_reduce.hlsl: hlsl gen/pathtag_reduce.spv
build gen/pathtag_reduce.dxil: dxil gen/pathtag_reduce.hlsl
build gen/pathtag_reduce.msl: msl gen/pathtag_reduce.spv

build gen/pathtag_root.spv: glsl pathtag_scan.comp | pathtag.h setup.h
  flags = -DROOT
build gen/pathtag_root.hlsl: hlsl gen/pathtag_root.spv
build gen/pathtag_root.dxil: dxil gen/pathtag_root.hlsl
build gen/pathtag_root.msl: msl gen/pathtag_root.spv

build gen/bbox_clear.spv: glsl bbox_clear.comp | setup.h mem.h
build gen/bbox_clear.hlsl: hlsl gen/bbox_clear.spv
build gen/bbox_clear.dxil: dxil gen/bbox_clear.hlsl
build gen/bbox_clear.msl: msl gen/bbox_clear.spv

build gen/pathseg.spv: glsl pathseg.comp | scene.h tile.h pathseg.h pathtag.h setup.h mem.h
build gen/pathseg.hlsl: hlsl gen/pathseg.spv
build gen/pathseg.dxil: dxil gen/pathseg.hlsl
build gen/pathseg.msl: msl gen/pathseg.spv

build gen/draw_reduce.spv: glsl draw_reduce.comp | scene.h drawtag.h setup.h mem.h
build gen/draw_reduce.hlsl: hlsl gen/draw_reduce.spv
build gen/draw_reduce.dxil: dxil gen/draw_reduce.hlsl
build gen/draw_reduce.msl: msl gen/draw_reduce.spv

build gen/draw_root.spv: glsl draw_scan.comp | drawtag.h setup.h
  flags = -DROOT
build gen/draw_root.hlsl: hlsl gen/draw_root.spv
build gen/draw_root.dxil: dxil gen/draw_root.hlsl
build gen/draw_root.msl: msl gen/draw_root.spv

build gen/draw_leaf.spv: glsl draw_leaf.comp | blend.h scene.h drawtag.h setup.h mem.h
build gen/draw_leaf.hlsl: hlsl gen/draw_leaf.spv
build gen/draw_leaf.dxil: dxil gen/draw_leaf.hlsl
build gen/draw_leaf.msl: msl gen/draw_leaf.spv

build gen/clip_reduce.spv: glsl clip_reduce.comp | mem.h setup.h
build gen/clip_reduce.hlsl: hlsl gen/clip_reduce.spv
build gen/clip_reduce.dxil: dxil gen/clip_reduce.hlsl
build gen/clip_reduce.msl: msl gen/clip_reduce.spv

build gen/clip_leaf.spv: glsl clip_leaf.comp | mem.h setup.h
build gen/clip_leaf.hlsl: hlsl gen/clip_leaf.spv
build gen/clip_leaf.dxil: dxil gen/clip_leaf.hlsl
build gen/clip_leaf.msl: msl gen/clip_leaf.spv

build spv: phony gen/backdrop_lg.spv gen/backdrop.spv gen/bbox_clear.spv gen/binning.spv gen/clip_leaf.spv gen/clip_reduce.spv gen/coarse.spv gen/draw_leaf.spv gen/draw_reduce.spv gen/draw_root.spv gen/kernel4.spv gen/kernel4_gray.spv gen/path_coarse.spv gen/pathseg.spv gen/pathtag_reduce.spv gen/pathtag_root.spv gen/tile_alloc.spv
build dxil: phony gen/backdrop.hlsl gen/backdrop_lg.hlsl gen/bbox_clear.hlsl gen/binning.hlsl gen/clip_leaf.hlsl gen/clip_reduce.hlsl gen/coarse.hlsl gen/draw_leaf.hlsl gen/draw_reduce.hlsl gen/draw_root.hlsl gen/kernel4.hlsl gen/kernel4_gray.hlsl gen/path_coarse.hlsl gen/pathseg.hlsl gen/pathtag_reduce.hlsl gen/pathtag_root.hlsl gen/tile_alloc.hlsl
build msl: phony gen/backdrop_lg.msl gen/backdrop.msl gen/bbox_clear.msl gen/binning.msl gen/clip_leaf.msl gen/clip_reduce.msl gen/coarse.msl gen/draw_leaf.msl gen/draw_reduce.msl gen/draw_root.msl gen/kernel4.msl gen/kernel4_gray.msl gen/path_coarse.msl gen/pathseg.msl gen/pathtag_reduce.msl gen/pathtag_root.msl gen/tile_alloc.msl